Features: One-piece toilets integrate the tank and bowl into a seamless, easy-to-clean design. Elongated bowl offers added room and comfort. Comfort Height feature offers chair-height seating that makes sitting down and standing up easier for most adults 1.28 gallons per flush (gpf) provides significant water savings of up to 16,500 gallons per year (compared to a 3.5-gallon toilet) without sacrificing performance 2-1/8-inch glazed trapway Standard left-hand Polished Chrome trip lever included Supply line not included Includes Grip-Tight Reveal Q3 toilet seat Flush valve's 3: 2 ratio harnesses the natural force of gravity and optimizes flush performance Durable canister design has 90% less exposed seal material than a 3-inch flapper, for leak-free performance Single-flush gravity uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong siphon during flushing AquaPiston canister allows water to flow into the bowl from all sides (360 degrees), increasing the power and effectiveness of the flush Light-touch canister flush requires a lower actuation force than a flapper Standard 12" rough-in WaterSense toilets meet strict EPA flushing guidelines, including using at least 20 percent less water than 1.6-gallon toilets